how to check whether gridview's row is selected or not in c#.net windows application

I want to know how to check whether a gridview's row got selected or not. I am working on windows application.

I want to put a if condition ie if a particular row ge开发者_JAVA百科ts selected then fill the textbox with the correspoding cell value.

I am just not getting the way how to give the condition in the if clause.

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Handle the DataGridView.SelectionChanged event. Use the DataGridView.SelectedRows property to get the selected rows collection.

private void dataGridView_SelectionChanged(object sender, EventArgs e)
{
    // Update the text of TextBox controls.
    textBox1.Text = dataGridView.SelectedRows[0].Cells[1].Value.ToString();
    textBox2.Text = dataGridView.SelectedRows[0].Cells[2].Value.ToString();
    ....
}

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Check DataGridViewRow.Selected property.

if (dataGridView.Rows[rowIndex].Selected)
{
    // Do something ..
}

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Check the selected property of DataGridViewRow, it returns true for selected else false.

bool isSelected = dataGridView1.Rows[e.RowIndex].Selected;

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You can subscribe to the SelectionChanged event of the control and iterate through each selected row if multi-selection is enabled or just the first one if single-row selection only.

private void MyGridView_SelectionChanged(object sender, EventArgs e)
{
      for (int i = 0; i < MyGridView.SelectedRows.Count; i++)
      {
          MyTextBox.Text = MyGridView.SelectedRows[i].Cells[0].Value.ToString(); //assuming column 0 is the cell you're looking for

          // do your other stuff
      }
}

More information can be found on the SelectedRows property.